# Aptitude - Problems on Ages - Discussion

Discussion Forum : Problems on Ages - Data Sufficiency 2 (Q.No. 2)

*Directions to Solve*

Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.

2.

What is Ravi's present age? | |

I. | The present age of Ravi is half of that of his father. |

II. | After 5 years, the ratio of Ravi's age to that of his father's age will be 6 : 11. |

III. | Ravi is 5 years younger than his brother. |

Answer: Option

Explanation:

I. Let Ravi's present age be *x* years. Then, his father's present age = 2*x* years.

II. After 5 years, | Ravi's age | = | 6 |

Father's age | 11 |

III. Ravi is younger than his brother.

From I and II, we get | x + 5 |
= | 6 | . This gives x, the answer. |

2x + 5 |
11 |

Thus, I and II together give the answer. Clearly, III is redundant.

Correct answer is (A).

Discussion:

5 comments Page 1 of 1.
Anome said:
10 months ago

Let Ravi's present age be x years.

And ravi's father age be y years.

x = 0.5 y ---> eqn.1

After 5 years, so x+5 & y+5,

x+5/y+5 = 6/11

11(x+5) = 6(y+5) ---> equ.2.

put equ.1 into equ. 2,

y=50.

Then, put y into eqn.1,

x=25.

And ravi's father age be y years.

x = 0.5 y ---> eqn.1

After 5 years, so x+5 & y+5,

x+5/y+5 = 6/11

11(x+5) = 6(y+5) ---> equ.2.

put equ.1 into equ. 2,

y=50.

Then, put y into eqn.1,

x=25.

(1)

VIGNESH said:
2 years ago

Is Ravi age is 25? Please explain it.

Nishant bhat said:
2 years ago

@Azeema.

Father's age is 2x (since double of Ravi's age, and after 5yrs mentioned as above, will be 2x+5.

Father's age is 2x (since double of Ravi's age, and after 5yrs mentioned as above, will be 2x+5.

Azeema said:
3 years ago

How 2x+5? Explain please.

Ankit kumar said:
7 years ago

Good one. Thanks for giving this question.

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